AMD Ryzen 9 5900X vs Intel Core i9-11900K: What is the difference?
66points
AMD Ryzen 9 5900X
68points
Intel Core i9-11900K
i9-11900KF
Comparison winner
vs
66 facts in comparison
AMD Ryzen 9 5900X
Intel Core i9-11900K
Why is AMD Ryzen 9 5900X better than Intel Core i9-11900K?
- 1.59x faster CPU speed?
12 x 3.7GHzvs8 x 3.5GHz - 8 more CPU threads?
24vs16 - 7nm smaller semiconductor size?
7nmvs14nm - 4MB bigger L2 cache?
6MBvs2MB - 1.54x higher PassMark result?
39349vs25557 - 20W lower TDP?
105Wvs125W - 48MB bigger L3 cache?
64MBvs16MB - 256KB bigger L1 cache?
768KBvs512KB
Why is Intel Core i9-11900K better than AMD Ryzen 9 5900X?
- 10°C higher maximum operating temperature?
100°Cvs90°C - 0.
5GHz higher turbo clock speed?
5.3GHzvs4.8GHz - Has integrated graphics?
- 8.93% higher single-core Geekbench 5 result?
1818vs1669
Which are the most popular comparisons?
AMD Ryzen 9 5900X
vs
AMD Ryzen 7 5800X
Intel Core i9-11900K
vs
Intel Core i9-10900K
AMD Ryzen 9 5900X
vs
AMD Ryzen 7 5800X3D
Intel Core i9-11900K
vs
Intel Core i7-11700K
AMD Ryzen 9 5900X
vs
AMD Ryzen 9 5950X
Intel Core i9-11900K
vs
Apple M1 Max
AMD Ryzen 9 5900X
vs
Intel Core i7-12700
Intel Core i9-11900K
vs
AMD Ryzen 9 5950X
AMD Ryzen 9 5900X
vs
AMD Ryzen 5 5600X
Intel Core i9-11900K
vs
Intel Core i7-10700K
AMD Ryzen 9 5900X
vs
AMD Ryzen 7 7700X
Intel Core i9-11900K
vs
AMD Ryzen 7 5800X
AMD Ryzen 9 5900X
vs
Intel Core i9-10900K
Intel Core i9-11900K
vs
Intel Core i9-11900
AMD Ryzen 9 5900X
vs
AMD Ryzen 7 5700G
Intel Core i9-11900K
vs
Apple M1
AMD Ryzen 9 5900X
vs
AMD Ryzen 9 3950X
Intel Core i9-11900K
vs
AMD Ryzen 9 5900HX
Price comparison
Cheap alternatives
User reviews
Overall Rating
AMD Ryzen 9 5900X
4 User reviews
AMD Ryzen 9 5900X
10.
0/10
4 User reviews
Intel Core i9-11900K
2 User reviews
Intel Core i9-11900K
10.0/10
2 User reviews
Features
Value for money
9.3/10
4 votes
8.5/10
2 votes
Gaming
10.0/10
4 votes
10.0/10
2 votes
Performance
10.0/10
4 votes
10.0/10
2 votes
Reliability
9.5/10
4 votes
10.0/10
2 votes
Energy efficiency
9.3/10
4 votes
9.0/10
2 votes
Performance
CPU speed
12 x 3.7GHz
8 x 3.5GHz
The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.
CPU threads
More threads result in faster performance and better multitasking.
turbo clock speed
4.8GHz
5.3GHz
When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
Has an unlocked multiplier
✔AMD Ryzen 9 5900X
✔Intel Core i9-11900K
Some processors come with an unlocked multiplier which makes them easy to overclock, allowing you to gain increased performance in games and other apps.
L2 cache
A larger L2 cache results in faster CPU and system-wide performance.
L3 cache
A larger L3 cache results in faster CPU and system-wide performance.
L1 cache
A larger L1 cache results in faster CPU and system-wide performance.
L2 core
0.
5MB/core
0.25MB/core
More data can be stored in the L2 cache for access by each core of the CPU.
L3 core
5.33MB/core
2MB/core
More data can be stored in the L3 cache for access by each core of the CPU.
Benchmarks
PassMark result
This benchmark measures the performance of the CPU using multiple threads.
PassMark result (single)
This benchmark measures the performance of the CPU using a single thread.
Geekbench 5 result (multi)
Geekbench 5 is a cross-platform benchmark that measures a processor’s multi-core performance. (Source: Primate Labs, 2022)
Cinebench R20 (multi) result
Cinebench R20 is a benchmark tool that measures a CPU’s multi-core performance by rendering a 3D scene.
Cinebench R20 (single) result
Cinebench R20 is a benchmark tool that measures a CPU’s single-core performance by rendering a 3D scene.
Geekbench 5 result (single)
Geekbench 5 is a cross-platform benchmark that measures a processor’s single-core performance. (Source: Primate Labs, 2022)
Blender (bmw27) result
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
The Blender (bmw27) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.
Blender (classroom) result
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
The Blender (classroom) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.
performance per watt
Unknown. Help us by suggesting a value.
(Intel Core i9-11900K)
This means the CPU is more efficient, giving a greater amount of performance for each watt of power used.
Integrated graphics
GPU clock speed
∅
Not applicable
350MHz
The graphics processing unit (GPU) has a higher clock speed.
GPU turbo
∅
Not applicable
1300MHz
When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
GPU execution units
∅
Not applicable
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
A graphics processing unit (GPU) with a greater number of execution units can deliver better graphics.
supported displays
∅
Not applicable
Using multiple displays you can create a larger workspace, making it easier to work across multiple apps.
DirectX version
∅
Not applicable
DirectX is used in games, with newer versions supporting better graphics.
OpenGL version
∅
Not applicable
OpenGL is used in games, with newer versions supporting better graphics.
OpenCL version
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
Some apps use OpenCL to apply the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions introduce more functionality and better performance.
texture mapping units (TMUs)
∅
Not applicable
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
TMUs take textures and map them to the geometry of a 3D scene. More TMUs will typically mean that texture information is processed faster.
render output units (ROPs)
∅
Not applicable
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.
Memory
RAM speed
3200MHz
3200MHz
It can support faster memory, which will give quicker system performance.
maximum memory bandwidth
47.68GB/s
50GB/s
This is the maximum rate that data can be read from or stored into memory.
DDR memory version
DDR (Double Data Rate) memory is the most common type of RAM. Newer versions of DDR memory support higher maximum speeds and are more energy-efficient.
memory channels
More memory channels increases the speed of data transfer between the memory and the CPU.
maximum memory amount
The maximum amount of memory (RAM) supported.
bus transfer rate
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
The bus is responsible for transferring data between different components of a computer or device.
Supports ECC memory
✖AMD Ryzen 9 5900X
✖Intel Core i9-11900K
Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.
eMMC version
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
A higher version of eMMC allows faster memory interfaces, having a positive effect on the performance of a device. For example, when transferring files from your computer to the internal storage over USB.
bus speed
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
The bus is responsible for transferring data between different components of a computer or device.
Features
uses multithreading
✔AMD Ryzen 9 5900X
✔Intel Core i9-11900K
Multithreading technology (such as Intel’s Hyperthreading or AMD’s Simultaneous Multithreading) provides increased performance by splitting each of the processor’s physical cores into virtual cores, also known as threads. This way, each core can run two instruction streams at once.
Has AES
✔AMD Ryzen 9 5900X
✔Intel Core i9-11900K
AES is used to speed up encryption and decryption.
Has AVX
✔AMD Ryzen 9 5900X
✔Intel Core i9-11900K
AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.
SSE version
SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.
Has F16C
✔AMD Ryzen 9 5900X
✔Intel Core i9-11900K
F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
bits executed at a time
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
NEON provides acceleration for media processing, such as listening to MP3s.
Has MMX
✔AMD Ryzen 9 5900X
✔Intel Core i9-11900K
MMX is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
Has TrustZone
✖AMD Ryzen 9 5900X
✖Intel Core i9-11900K
A technology integrated into the processor to secure the device for use with features such as mobile payments and streaming video using digital rights management (DRM).
front-end width
Unknown. Help us by suggesting a value. (AMD Ryzen 9 5900X)
Unknown. Help us by suggesting a value. (Intel Core i9-11900K)
The CPU can decode more instructions per clock (IPC), meaning that the CPU performs better
Price comparison
Which are the best CPUs?
Intel Core i9 11900K vs AMD Ryzen 9 5900X: performance comparison
VS
Intel Core i9 11900K
AMD Ryzen 9 5900X
We compared two desktop CPUs: the 3.5 GHz Intel Core i9 11900K with 8-cores against the 3.7 GHz AMD Ryzen 9 5900X with 12-cores. On this page, you’ll find out which processor has better performance in benchmarks, games and other useful information.
- Review
- Differences
- Performance
- Specs
- Comments (1)
Review
General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Core i9 11900K
79
Ryzen 9 5900X
74
Performance
Measure performance when all cores are involved
Core i9 11900K
59
Ryzen 9 5900X
80
Power Efficiency
The efficiency score of electricity consumption
Core i9 11900K
54
Ryzen 9 5900X
63
NanoReview Final Score
Generic CPU rating
Core i9 11900K
65
Ryzen 9 5900X
76
Key Differences
What are the key differences between 5900X and 11900K
Advantages of Intel Core i9 11900K
- Newer — released 5-months later
- Includes an integrated GPU Intel UHD Graphics 750
- More than 10° C higher critical temperature
- 10% higher Turbo Boost frequency (5.
3 GHz vs 4.8 GHz) - 11% faster in a single-core Geekbench v5 test — 1830 vs 1644 points
- Around 2.32 GB/s (5%) higher theoretical memory bandwidth
Advantages of AMD Ryzen 9 5900X
- Has 48 MB larger L3 cache size
- More modern manufacturing process – 7 versus 14 nanometers
- Has 4 more physical cores
- Consumes up to 16% less energy than the Core i9 11900K – 105 vs 125 Watt
Benchmarks
Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Core i9 11900K
+3%
1636
Ryzen 9 5900X
1583
Cinebench R23 (Multi-Core)
Core i9 11900K
15207
Ryzen 9 5900X
+36%
20684
Passmark CPU (Single-Core)
Core i9 11900K
+2%
3543
Ryzen 9 5900X
3471
Passmark CPU (Multi-Core)
Core i9 11900K
25681
Ryzen 9 5900X
+54%
39503
Geekbench 5 (Single-Core)
Core i9 11900K
+12%
1841
Ryzen 9 5900X
1648
Geekbench 5 (Multi-Core)
Core i9 11900K
11100
Ryzen 9 5900X
+29%
14270
▶️ Submit your Cinebench R23 result
By purchasing through links on this site, we may receive a commission from Amazon.
This does not affect our assessment methodology.
Specifications
Full technical specification of Intel Core i9 11900K and AMD Ryzen 9 5900X
General
| Vendor | Intel | AMD |
| Released | March 16, 2021 | October 8, 2020 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Rocket Lake | Vermeer |
| Model number | i9-11900K | — |
| Socket | LGA-1200 | AM4 |
| Integrated GPU | UHD Graphics 750 | No |
Performance
| Cores | 8 | 12 |
| Threads | 16 | 24 |
| Base Frequency | 3. 5 GHz |
3.7 GHz |
| Turbo Boost Frequency | 5.3 GHz | 4.8 GHz |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 35x | 37x |
| Bus Bandwidth | 8 GT/s | — |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 512K (per core) | 512K (per core) |
| L3 Cache | 16MB (shared) | 64MB (shared) |
| Unlocked Multiplier | Yes | Yes |
| Fabrication process | 14 nm | 7 nm |
| TDP | 125 W | 105 W |
| Max. temperature | 100°C | 90°C |
| Integrated Graphics | Intel UHD Graphics 750 | — |
| GPU Base Clock | 300 MHz | — |
| GPU Boost Clock | 1300 MHz | — |
| Shading Units | 256 | — |
| TMUs | 64 | — |
| ROPs | 32 | — |
| Execution Units | 32 | — |
| TGP | 15 W | — |
Max. Resolution |
3840×2160 — 60 Hz | — |
iGPU FLOPS
Core i9 11900K
0.46 TFLOPS
Ryzen 9 5900X
n/a
Memory support
| Memory types | DDR4-3200 | DDR4-3200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 50 GB/s | 47.68 GB/s |
| ECC Support | No | Yes |
| Official site | Intel Core i9 11900K official page | AMD Ryzen 9 5900X official page |
| PCI Express Version | 4.0 | 4.0 |
| PCI Express Lanes | 20 | 20 |
Cast your vote
Choose between two processors
Core i9 11900K
94 (16.